College is a lot different in my opinion. I won't say its better, because thats all a matter of opinion. Each has their ups and downs. College has its freedom, independence, etc, but high school has its innocence, and its a lot more laid back, and your responsibility level is minimal in comparison. Personally I could never go back to a high school style environment. I like my freedom.
Anyway, congrats with high school, and good luck next year.